Atlantic City, New Jersey climate: Normal weather by month, frost dates and records
Atlantic City's normal year runs from 25°F January nights to 87°F July afternoons, with 46.0 inches of precipitation and 17 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.8°C, January lows of −4°C, July highs of 30°C, 1,167 mm of precipitation a year.
- NOAA stationAtlantic City International Airport
- Station IDUSW00093730
- Location39.45°N 74.57°W
- Elevation60 ft (18 m)
- From the center8 miles
- Population38,959
On October 23, the normal high in Atlantic City is 65°F and the normal low 44°F, and the chance of measurable rain or snow is 29%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Atlantic City.
- Jan 43° 25°
- Feb 46° 26°
- Mar 53° 33°
- Apr 63° 42°
- May 73° 51°
- Jun 82° 61°
- Jul 87° 67°
- Aug 85° 65°
- Sep 79° 58°
- Oct 68° 46°
- Nov 57° 37°
- Dec 48° 29°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Atlantic City each month?
July is the warmest month, with normal highs of 87°F; January the coldest, with normal lows of 25°F. The most precipitation falls in August (4.59 in), the least in February (3.23 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 43°F | 25°F | 34.1°F | 3.38 | 5.7 | 11 | <1 | 24 | 9 h 40 min |
| February | 46°F | 26°F | 36.0°F | 3.23 | 5.9 | 10 | <1 | 22 | 10 h 40 min |
| March | 53°F | 33°F | 42.6°F | 4.52 | 2.2 | 11 | <1 | 17 | 11 h 50 min |
| April | 63°F | 42°F | 52.5°F | 3.32 | 0.3 | 11 | <1 | 5 | 13 h 10 min |
| May | 73°F | 51°F | 61.9°F | 3.34 | 0.0 | 11 | 1 | <1 | 14 h 20 min |
| June | 82°F | 61°F | 71.4°F | 3.58 | 0.0 | 10 | 4 | <1 | 15 h |
| July | 87°F | 67°F | 76.9°F | 4.47 | 0.0 | 10 | 10 | <1 | 14 h 40 min |
| August | 85°F | 65°F | 75.0°F | 4.59 | 0.0 | 9 | 6 | <1 | 13 h 50 min |
| September | 79°F | 58°F | 68.4°F | 3.55 | 0.0 | 9 | 1 | <1 | 12 h 30 min |
| October | 68°F | 46°F | 57.1°F | 4.14 | 0.0 | 9 | <1 | 2 | 11 h 10 min |
| November | 57°F | 37°F | 46.8°F | 3.37 | 0.1 | 9 | <1 | 11 | 10 h |
| December | 48°F | 29°F | 38.7°F | 4.47 | 3.2 | 11 | <1 | 21 | 9 h 30 min |
| Year (annual) | 65°F | 45°F | 55.1°F | 45.96 | 17.4 | 120 | 23 | 101 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 6°C | −4°C | 1.2°C | 86 mm | 14 cm |
| February | 8°C | −3°C | 2.2°C | 82 mm | 15 cm |
| March | 11°C | 0°C | 5.9°C | 115 mm | 6 cm |
| April | 17°C | 5°C | 11.4°C | 84 mm | 1 cm |
| May | 23°C | 11°C | 16.6°C | 85 mm | 0 cm |
| June | 28°C | 16°C | 21.9°C | 91 mm | 0 cm |
| July | 30°C | 20°C | 24.9°C | 114 mm | 0 cm |
| August | 29°C | 18°C | 23.9°C | 117 mm | 0 cm |
| September | 26°C | 15°C | 20.2°C | 90 mm | 0 cm |
| October | 20°C | 8°C | 13.9°C | 105 mm | 0 cm |
| November | 14°C | 3°C | 8.2°C | 86 mm | 0 cm |
| December | 9°C | −1°C | 3.7°C | 114 mm | 8 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00093730; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Atlantic City?
Normal highs sit between 65°F and 85°F in May, June, August, September and October. Of those, September has the fewest days with rain (9).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00093730.
When is the last frost in Atlantic City?
In Atlantic City, the last spring frost (32°F) comes after April 18 in half of years and after May 5 in one year in ten; the first autumn frost comes before October 29 in half of years and before October 13 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 181 year in 10 after May 5; 9 in 10 after April 2
- First autumn frost, half of years before
- October 291 year in 10 before October 13; 9 in 10 before November 11
NOAA puts the median frost-free season at 190 days, and the season without a hard freeze (28°F) at 214 days.
A hard freeze (28°F) comes after April 5 in half of springs and before November 8 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Atlantic City in zone 8a in ZIP code 08401. By the map's own method, the average of each year's coldest night over 1991-2020, Atlantic City's NOAA station is in zone 7a: the coldest night of a typical year reaches 4°F (30 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in New Jersey · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00093730; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Atlantic City?
In a normal year in Atlantic City, 23 days a year reach 90°F (1 of them 100°F or more), 101 nights fall to 32°F or colder and 120 days bring measurable precipitation.
- Days at 90°F or more
- 23a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 101a normal year
- Days that stay below freezing
- 11high of 32°F or less
- Days with 0.01 inch of precipitation
- 120a normal year
- Days with 1 inch of snow or more
- 5a normal year
The highest temperature in Atlantic City's official record (kept by the National Weather Service since 1943) is 106°F, on June 28, 1969; the lowest is −11°F, on February 12, 1979.
The wettest calendar year on that record is 2018, with 68.57 in; the snowiest season is 2009–10, with 58.1 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00093730; records: ACIS (NOAA Regional Climate Centers), NWS threaded record ACYthr. Records use complete months only; a month missing more than three days is left out.
How humid and windy is Atlantic City, and how clear are its skies?
The summer (June-August) dew point averages 65°F. The muggiest month is July, with an average dew point of 67°F, above the 65°F at which most people call the air sticky; the driest air comes in January (23°F). February is the windiest month (10.5 mph on average), and June has the most clear or nearly clear hours (68%).
| Month | Dew point | Humidity | Afternoon humidity | Wind | Clear or few clouds | Overcast |
|---|---|---|---|---|---|---|
| January | 23°F | 65% | 51% | 9.5 mph | 60% | 29% |
| February | 27°F | 63% | 49% | 10.5 mph | 56% | 32% |
| March | 35°F | 62% | 47% | 10.2 mph | 56% | 31% |
| April | 45°F | 65% | 49% | 9.6 mph | 59% | 25% |
| May | 56°F | 70% | 54% | 8.1 mph | 61% | 22% |
| June | 64°F | 71% | 53% | 7.5 mph | 68% | 13% |
| July | 67°F | 74% | 57% | 6.8 mph | 67% | 13% |
| August | 64°F | 75% | 57% | 7.1 mph | 68% | 14% |
| September | 55°F | 76% | 58% | 7.5 mph | 64% | 21% |
| October | 43°F | 71% | 54% | 8.1 mph | 64% | 24% |
| November | 34°F | 69% | 54% | 8.7 mph | 61% | 27% |
| December | 27°F | 69% | 55% | 9.2 mph | 60% | 30% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00093730. Monthly averages of all hours; afternoon humidity at 3 p.m. local standard time; sky as the share of hours NOAA's observations rate clear or few clouds (a dash where NOAA publishes no sky value).
How sunny is Atlantic City?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Atlantic City, 4.1 kWh per square metre a day. July is the sunniest month (82%) and January the cloudiest (68%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 68% | 2.0 |
| February | 71% | 2.9 |
| March | 71% | 3.9 |
| April | 73% | 5.0 |
| May | 73% | 5.5 |
| June | 78% | 6.1 |
| July | 82% | 6.2 |
| August | 80% | 5.4 |
| September | 78% | 4.4 |
| October | 72% | 3.1 |
| November | 73% | 2.3 |
| December | 69% | 1.8 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Atlantic City need?
A normal year in Atlantic City brings 4,701 heating degree days, 12% fewer than the median U.S. place (5,373), and 1,136 cooling degree days, 25% more than the median (908). Six months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,695 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 956 | 0 |
| February | 812 | 0 |
| March | 695 | 1 |
| April | 387 | 12 |
| May | 155 | 61 |
| June | 23 | 215 |
| July | 0 | 369 |
| August | 1 | 311 |
| September | 43 | 144 |
| October | 270 | 23 |
| November | 546 | 1 |
| December | 814 | 0 |
| Year (annual) | 4,701 | 1,136 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00093730. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Atlantic City been warmer than normal lately?
2025 averaged 55.3°F, 0.2°F above the 1991-2020 normal of 55.1°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 56.6°F | +1.5°F | 48.77 | 7.3 |
| 2022 | 55.5°F | +0.4°F | 52.71 | 33.3 |
| 2023 | 56.5°F | +1.4°F | 44.32 | 0.3 |
| 2024 | 56.9°F | +1.8°F | 43.51 | 7.3 |
| 2025 | 55.3°F | +0.2°F | 46.30 | 16.1 |
Over 73 complete years from 1947 to 2025, the station's annual mean temperature rose at a fitted 3.5°F per century (+0.20°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00093730; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Atlantic City's climate compare?
Atlantic City is warmer than 26 of the other 32 places with their own NOAA record in New Jersey, and wetter than 6. Across the 7,247 U.S. stations with normals, its annual mean of 55.1°F is warmer than 61%.
In the Köppen classification computed from these normals, Atlantic City is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Atlantic City share this climate record?
14 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- McKee City, NJ10,843 people · 5 mi W
- Smithville, NJ9,260 people · 6 mi NE
- Absecon, NJ9,249 people · 4 mi SE
- Pomona, NJ8,141 people · 2 mi NE
- Mays Landing, NJ6,178 people · 7 mi W
- Egg Harbor City, NJ4,442 people · 8 mi N
- Stockton University, NJ2,801 people · 3 mi N
- English Creek, NJ2,275 people · 7 mi SW
- Absecon Highlands, NJ1,512 people · 5 mi E
- Port Republic, NJ1,131 people · 8 mi NE
- Cologne, NJ1,023 people · 4 mi NW
- Germania, NJ974 people · 5 mi N
- Oceanville, NJ721 people · 7 mi E
- Leeds Point, NJ78 people · 7 mi NE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Atlantic City's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Atlantic City. This page uses Atlantic City International Airport; the other differs by site and elevation:
| Station | From the center | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Atlantic City station USW00013724 | 1 mi E | 10 ft | 55.5°F | 30°F | 80°F | 43.6 | – | March 26 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Atlantic City's climate
What is the coldest month in Atlantic City?
January, with a normal high of 43°F and a normal low of 25°F. The warmest is July (87°F by day, 67°F at night).
Does it snow in Atlantic City?
Yes: 17 inches in a normal year, falling on 9 days with 0.1 inch or more, the most in February (5.9 inches).
What is the rainiest month in Atlantic City?
August, with 4.59 in of precipitation in a normal year; the driest is February with 3.23 in.
What plant hardiness zone is Atlantic City in?
The USDA's 2023 map puts Atlantic City in zone 8a in ZIP code 08401. By the same method at Atlantic City's NOAA station, the coldest night of a typical year reaches 4°F (30 years, 1991-2020): zone 7a.
How late can frost come in Atlantic City?
In half of years the last 32°F night comes after April 18; in one year in ten it comes after May 5. Waiting until May 5 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Atlantic City in OctoberThis month day by day, its records and recent years
- New Jersey climateThe statewide normals and every place in the state
- Margate, NJ9 miles from this station, 56.9°F a year
- Estell Manor, NJ15 miles from this station, 54.5°F a year
- Hammonton, NJ19 miles from this station, 54.6°F a year
- Brant Beach-Beach Haven, NJ19 miles from this station, 54.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made